Kvp h3 buffer + super safety is gtg - Kaw Valley Precision Heavy Tungsten H3 Carbine Buffer

I purchased the KVP H3 buffer to run with a Redacted Super Safety in my lefty Stag 15. Measured weight is 5.6 oz not 5.4 oz. I tried a H2 buffer however it doesn't have enough mass to run well. I had the Stag 15 out at the range with the KVP H3 installed and it ran great although cycle rate was high. SS manufacture recommends an extra power recoil spring in combination with the H3 buffer for manageable performance.